EP 0119673 A1 19840926 - Transducers.

Title (en)

Transducers.

Title (de)

Kraftwandler.

Title (fr)

Transducteurs de force.

Publication

EP 0119673 A1 19840926 (EN)

Application

EP 84300018 A 19840103

Priority

US 45544383 A 19830103

Abstract (en)

A transducer (10) for indicating changes of an applied physical force (F) includes a first means (18) connected within an electrical circuit (20, 22) so that an electrical potential difference is always connected across the first means. A second means (24) is capable of electrically coupling with the first means (18) in a manner so as to reflect a linear relationship between the area of coupling between the two means and the force (F) applied to the second means (24). The coupling may be resistive, capacitive or inductive in nature. An elastomeric actuator (28) may be provided. The fact that current can flow through the first means (18), even when it is not electrically coupled with the second means (24), allows the zero position of an indicator dot driven by the transducer to be readily adjusted.

IPC 1-7

G01L 1/20; G01L 1/14; H01C 10/10; H01G 5/24

IPC 8 full level

G01L 1/14 (2006.01); G01L 1/20 (2006.01)

CPC (source: EP KR US)

G01L 1/14 (2013.01 - EP US); G01L 1/142 (2013.01 - EP US); G01L 1/20 (2013.01 - EP US); G01L 1/22 (2013.01 - KR); H01H 2239/078 (2013.01 - EP US)

Citation (search report)

US 3781751 A 19731225 - SULGER H
US 4314227 A 19820202 - EVENTOFF FRANKLIN N
CH 549207 A 19740930 - GAUER AG ELECTRONIC
US 3328653 A 19670627 - WOLF JR RUDOLPH J
US 3693059 A 19720919 - HARRIS RICHARD H
DE 2513785 A1 19751009 - EUROP COMPOSANTS ELECTRON
DE 2727221 A1 19781221 - KUHN GOETZ GERD PROF DR MED
DE 3006678 A1 19810827 - KROMSCHROEDER AG G [DE]
DE 2300837 A1 19740612 - INDUR ANTRIEBSTECHNIK AG
DE 1299441 B 19690717 - GODDIN DEREK JOSEPH HARRY TUNB
GB 1562766 A 19800319 - ELECTRIC POWER RES INST
DE 2556947 B2 19790111

Designated contracting state (EPC)

CH DE FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0119673 A1 19840926; EP 0119673 B1 19880608; AU 2294883 A 19840705; AU 569860 B2 19880225; DE 3472004 D1 19880714; JP S59151029 A 19840829; KR 840007626 A 19841208; US 4479392 A 19841030

DOCDB simple family (application)

EP 84300018 A 19840103; AU 2294883 A 19831229; DE 3472004 T 19840103; JP 24558983 A 19831228; KR 830006312 A 19831230; US 45544383 A 19830103